Septoplasty and Rhinoplasty are often done together.
In general, where there's a crooked or skewed external appearance, there's also a skewed or deviated septum. Typically, both the septum and the external framework of the nose need to be addressed at the same time. This, of course, means septoplasty and rhinoplasty (a.k.a., septorhinoplasty).
Closed approaches may work just fine, but my general preference is an open approach, especially for the crooked nose.
One important factor to consider, though, is whether the face itself is skewed. In...